Improvement in molds for suppositories



didnt iain @sind @fine JOSEPH` A. ROBBINS, 0E MEDFGRD, ASSIGNQR TO lEiIMSELliA AND FRANCIS l V. AHOLMES, OB` BOSTON, MASSACHUSETTS.

Letters Patent No. 112,634,'da.ted March 1d, 1871.

IMPROVEMENT INl MOLDS FOR SUPPOSITORIES.

The Schedule referred to in these Letters Patent and maldngpart of the same.

I, JOSEPH A. ROBBINS, of Medford, in the county of Middlesex and State of Masscchusette'have'invented cert-ain Improvements in Molds for Suppositories, ofwhich the following is a speciiication.` Figure 1' is a perspective View of my invention.

FigureZ is a. longitudinal vertical central section.

vFigure 3 is e transverse vertical central section, and

Figure 4 a similar section, showing the old form.

This invention relates to the manufacture of medicated suppositories, and consists of an inverted conical mold, 'divided vertically into halves, each of which of which is divided vertically into two equal parts, l

both being attached to the rod or shank E, and located in the depressions B of block A.

The shank E is provided 'on one end with a disk or thumb-piece, F, between which and the block A'is a 'spiral spring, H.

The melted compound is poured into the molds D when in the position shown in fig. l, and when the same solidies, the mold is pushed up, as shown in iig. 2, or the block is opened, the latter operation enabling the mold to, be removed.

f The parts of the molds D are so attached to rods E that, when the sameare removed from block A, they will open sufficiently to-vdisengage their contents and allow the same to be removed. Itis well known that suppositories areA often of an extremely delicate and fragile nature, andare easily broken, a fact that renders their manufacture a work of some difficulty, as they are liable to crumble in being removed from the mold.V

The old form of mold hinged at the bottom4 (shown in iig. 4) being simply a depression between two hinged blocks, after the manner of a bullet-mold, is liable to the above-mentioned objection, while by my arrangement Ythe 1most delicate compound can' be removed from the mold without injury, as muchy more care can be exercised in their manipulation.

The blookAis hinged on the same side as the wide ends or mouths of the sockets or depressions B, as shown in iig. 3; and in case the' molds D are not eniployed, and the suppositories are run directly into the block itself', the same will necessarily open from the -bottom, end parting rst from the pointed ends of the suppositories will gradually part from the large ends, avoiding any sudden'separation at the point where the largest amount of surface adheres to the mold, which would not be the case if the block were hinged on the lower side in the old method. This arrangement nlso enables me to remove the molds D readily from the block A.

Having thus fully described my invention,

What I claim as new, and desire to secure by I.|et' ters Patent, is i 1. The mold D, arranged on rod E, with spiral spring H, substantially as described. vv 2. The mold D, constructed as described, iuccrnbi-v nation with the block A hinged :it the larger ends of the conical recesses B, as and for the purpose set.

fort-h.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witmesses.

JOSEPH A. ROBBINS. Witnesses:

CARROLL D. Were HT, 'CHARLES F. BROWN. 

